What determines a person's success is the quality of his beliefs, not the number of believers.

Victory depends on the will of the combatants, not the number of followers.

Only stupid people will be conceited and casually reveal their feelings, can't control their emotions, indulge in sad memories, and easily make themselves angered by others.

This mirror can neither teach us knowledge nor tell us the truth. People waste their time in front of him, obsessed with what they see, and even driven crazy, because they don't know whether everything in the mirror is true or not.

Extended data:

Harry Potter and the Deathly Hallows is a novel by J·K· Rowling, a British woman writer. This is the seventh and last Harry Potter series of magical novels.

Hallows mainly tells the story that Harry, who is 17 years old, should continue his last year at Hogwarts School of Witchcraft and Wizardry. However, in order to complete the task of destroying Voldemort left by Dumbledore, the former headmaster of Hogwarts School of Witchcraft and Wizardry, Harry and his friends faced Voldemort and his followers' death eaters, followed them invisibly, went through hardships, and finally destroyed many horcruxes and defeated Voldemort, thus achieving a great victory in the wizarding world.

Harry Potter and the Deathly Hallows is the end of the whole novel series, which expounds the ultimate fate of all important people.